A pressurisation failure warning horn may sound if there is a leak in cabin pressure, or, if during the climb, the aircraft's rate of climb exceeds the rate of pressurisation. The warning horn will most commonly be heard between 10,000ft and 15,000ft altitude and will normally cease once the rate of pressurisation catches up to the aircraft's rate of climb.
Why does a warning horn sound during the climb?
Did you find it helpful? Yes No
Send feedbackSorry we couldn't be helpful. Help us improve this article with your feedback.